Free Mystery Books for Kids

Our mission is making literacy accessible to all children through free books, because reading should never have barriers. Our mystery books bring detective adventures and hidden clues to young readers ages 5-9, featuring whodunits, puzzles, and suspenseful stories that develop critical thinking skills.

Free Fantasy Decodable Reader with qu, x, z, w | An Odd Day

An Odd Day

When a man sets out to dig in the dirt on an ordinary day, something extraordinary happens. The sky begins to glow, and then something impossible occurs—fish start falling from above! What could cause such a strange and magical event? Join this curious digger as his day takes an unexpected turn in this delightfully odd adventure.

Fantasy Humor Mystery CCVC CCVCC CCCVCC CCCVC

Free Mystery Decodable Reader with V/V Syllables | Where Is My Shoe?

Where Is My Shoe?

Caterpillar has lost a very important shoe and can’t find it anywhere! He asks all his friends for help—Frog, Grasshopper, and Crab—but their shoes don’t fit at all. Will he ever find his own shoe? Join this determined little bug on a funny adventure to solve the mystery of the missing shoe!

Mystery Humor Friendship 3+-syllables

Free Fantasy Decodable Reader with 'th' Words | A Tall Tale

A Tall Tale

Pa loves telling tall tales, but this one might be his strangest yet! He says there’s a girl made of air who appears in storms and snowflakes. Nobody can see her—until Pa comes up with a clever idea using paint. But is this story really true, or is it just another one of Pa’s wild tales? What do you think is really going on?

Fantasy Family Mystery <th>

Free Adventure Decodable Reader with ow Words | Hop Finds the King

Hop Finds the King

Hop is on an urgent mission to find the king! With arrows falling from the sky, he races through the forest asking every animal he meets for help. Crow, Brown, Hip, and Ape all have clues, but will Hop reach the king in time? Follow this brave little rabbit on a thrilling adventure filled with mystery and unexpected twists!

Adventure Animals Mystery <ow>

Free STEM Decodable Reader with V/V Syllables | Magnet Magic!

Magnet Magic!

Rin sneaks into her brother Jin’s drawer and discovers a mysterious black block that sticks to metal objects in the most amazing ways! When she accidentally loses Jin’s special pen under the bed, Rin must use her clever thinking and her strange new discovery to save the day. What is this magical block, and can it help her get out of trouble?

STEM Family Mystery 3+-syllables

Free Decodable Reader with Short u Words | Pup Hears a Noise

Pup Hears a Noise

Pup can’t nap because of a mysterious chirping sound! He searches through the grass and discovers surprising friends along the way. What is making all that noise? Join Pup as he investigates and follows the clues. Will he ever get his peaceful nap?

Animals Mystery Nature juyv

Free Mystery Decodable Reader with xi Words | Who Ate It?

Who Ate It?

Kina and Kale discover a mysterious bite taken out of a guava on their favorite tree. They investigate suspects like caterpillars, grasshoppers, and chickens, but nothing fits. When the sun sets, Kina has a brilliant idea: what if the guava biter only comes out at night? Join the siblings on an exciting nighttime adventure as they set up camp and search for the mysterious creature. Who—or what—ate the guava?

Mystery Adventure Family <xi>

Free Decodable Reader with ck Digraph | My Best Sock

My Best Sock

Meet a sock-loving kid with a collection of colorful socks featuring spots, frills, and cool stitches. But disaster strikes when the most special pair of socks goes missing! These pink and purple socks are only worn on special days, and now they’ve vanished. Armed with a looking glass, the search begins - checking couches, under tables, and even the toilet! But what’s this mysterious scrap of fabric? Can you guess what happened to those beloved socks?

Family Mystery <ck>

Free Mystery Decodable Reader with Final Blends | Lost Toy

Lost Toy

Oh no! A favorite toy has gone missing, and the search is on! Like a real detective, our young hero looks everywhere, trying to remember where the toy was last seen. The hunt leads through the whole house, checking every corner and hiding spot. But who could have taken it? Will the mystery of the missing yo-yo ever be solved? Join this fun adventure to find out what happens when toys disappear!

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Free Mystery Decodable Reader with Silent e | Nuts!

Nuts!

She worked so hard all year long, gathering and storing her precious nuts. But when she goes to get them, they’re gone! Every single one has disappeared! Could the bird have taken them? What about the buzzing bees or the sneaky fly? Maybe the chimp or the lizard knows something? Join this determined little creature as she searches for answers. Can she solve the mystery of her missing nuts?

Animals Mystery Silent-e

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